Ghostscript is a processor for PostScript and PDF files. It can rasterize these files to a wide variety of printers, devices for screen preview, and image file formats. Since applications tend to prepare pages for printing in a high-level format such as PostScript, most Unix users with low-level bitmap printers, such as inkjets, use GhostScript as part of the printing process. In addition, Ghostscript is capable of converting PostScript files, functionality comparable to Adobe Acrobat Distiller, but on the command line. In addition, Ghostscript is used for file import and viewing by a great many other applications, including xv, ImageMagick, gimp, and xdvi. Several GUI wrappers for viewing PostScript and PDF files exist, including GSview, ghostview, gv, ggv, and kghostview. This is far from a comprehensive list.

GSview is a graphical interface for Ghostscript, an interpreter for the PostScript page description language used by laser printers. For documents following the Adobe PostScript Document Structuring Conventions, it allows selected pages to be viewed or printed. GSview requires Ghostscript 7 or later.

KTML is a browser-based WYSIWYG HTML editor that
facilitates easy content formatting using its
advanced table and image manipulation features.
Unlike other online editors, it supports most
platforms and configurations, providing users
with advanced text and paragraph formatting
capabilities as well as CSS support and easy
HTML tag selection. It also features advanced
image manipulation, an effective spell checking
module, and a Server Behavior for Dreamweaver
MX.

HTTPManifold is an application for funnelling
Web/HTTP traffic for multiple servers through a
single IP address (a reverse proxy). It is
intended for home users and small businesses so
that they can host multiple domains and
sub-domains through a single IP address on port
80. HTTPManifold forwards traffic to other
machines, logs requests, and rewrites content
during the process. It can also log the raw
content of requests for the purpose of debugging
Web services, etc. It provides a Web interface for
configuration and log viewing with some log
analysis capabilities.